Half to abeam keach



(No Model.)

J.,H. TOWANI `'GAS LIGHTING APPARATUS.

` No. 28o-,689.

Patented July 3, 1883..

I a www HUMAN.

` N. PETERSA Phommhngmpher, washington n. cA

UNITED STATES PATENT OFFICE.

JAMES H. TOVAN, OF OHARLESTOWN, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO ABRAM KEAOH, OF SAME PLACE.

GAS-LIGHTING APPARATUS.

SPECIFICATION forming part-of Letters Patent No. 280,689, dated July 3, 1883.

Applicationled February 2, 1883. (No model.)

.To all whom it may concern:

Be it known that I, JAMES H. TowAN, of Charlestown, county of Suffolk, State of Massachusetts, have invented an Improvement in 5 Gas-Lighting Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like letters onI the drawings representing like parts.

My invention, relating to an automatic gas 1o lighting and extinguishing apparatus, is em-4 bodied in an apparatus of that class in which a valve controlling the flow of gas to the burner is operated byelectro-magnets, 011e for opening and another for closing the said 15 valve, the one for opening it also operating a circuit-breaker in its own circuit to produce sparks for lighting the gas. f

This invention has for its object to make the apparatus rmore reliable in operation and 2o simpler and less expensive in construction than those heretofore in use; and it consists, mainly, in making the armatures of the magnets by which the valves are operated independent of one another.

Figure l is a side elevation of a burner and its lighting and extinguishing mechanism em-- bodying this invention with the inclosing-case removed; Fig. 2, a front elevation thereof, showing the magnet for opening the valve and 3o operating the circuit-breaker; Fig. 3, a vertical section on line x x, Fig. 2; Fig. 4, a vertical section on line y y, Fig. l, and Fig. 5 a horizontal section.

The burner a, of any usual construction, is

3 5 screwed upon the valve-containing or socket piece b, which is made of a cylinder of solid metal, threaded at its upper end to receive the burner, and bored and threaded at its lower end, as shown at 2, so asto enable itto 4o be mounted upon a pipe or xture in the usual manner. The socket-piece b is bored longitudinally at its upper end, as shown at 3, nearly through to the socket 2 at the lower end of the piece b, to afford a passage for the 4 5 gas to the burner, and the metal of the piece b between the passages or sockets 2 3 is bored transversely to afford a tapering socket for the valve 0, shown as a tapering plug having a portion of its side removed, as shown at 4,

so that it controls by a slight rocking movement the passage or port d, which is long in the direction of the valve-socket and very narrow, so that a sufficient area is aiforded for the iiow of gas, although only a very small rotary movement of the valve is required to open and closethe said passage. The smaller end of the valve c extends out beyond the side of the piece b, and isA provided with an annular groove, 5, which receives a spring, c, by which the valve is drawn into its socket, so as to maintain a'tight iit therein. The Valve is provided with an actuating arm or crank, f, engaged and operated by arms h h, connected with the armatures 'i fi of the extinguishing and lighting magnets k 7d, the said armatures being independent of one another, but mounted upon a common pivot, m, as best shown in Fig. 5. One electrode of the extinguishingmagnet k is connected with the metal of the burner and gas-pipes, constituting a ground, while the other electrode is connected by wire 6 with a key or circuit-closer for applying a battery when desired to magnetize the magnet k, and thus cause it to attract its armature i, and thus, by the arm 7L and crank f, rotate the valve c, so as to interrupt the flow of gas and put out the light. One electrode of the lightingmagnet k is connected by wire 7 with a key for applying a battery, and the other electrode is connected by wire 8 with a iixed contact-piece or electrode, n, insulated from the burner and forming one portion of a circuitbreaker, the other movable or vibrating por tion or electrode, o, of which is electrically connected with the frame-work or gas-fixture and ground, and has a longitudinal movement to and from the piece a, itfbeing acted upon by a spring, p, which normally keeps it in contact with the piece a, thus completing the circuit of the magnet k when the proper key is closed. When the circuit of the magnet k is closed or connected with the battery its armature i is attracted, and, by the arm h, acts on the crank f of the gas-valve c, throwing the said valve, so as to permit the gas to flow, and just before the said armature reaches the poles of its magnets it engages the movablel electrode o of the circuit-breaker by the project- Q asoma@ ing` pin or shoulder' a', and, overcoming` the spring;` p, moves the said electrode o away f'rom the electrode n, thus breaking the eirouit and producing a spark in the gas'issuing' Yfrom the burner and ignitin` it in the usual manner. The electrode o is automatically vibrated by the armature fi and spring p, thus producing a series of sparks as long as the battery is connected with the magnet; but the vibration of the armature does not produce any etl'eet on the valve c to disturb the How ol' the gas, owing` to the fact that it is wholly independent of the armature i of the extinguishing-magnet 7.', and the larms 7L h are not positively Connected with the eranlj"7 but merely press upon its opposite sides]` so that eaeh one aets only when its eorrespomling armature is attracted.

.soribing witnesses.

JAMES H. TOVAN.

\\Tii'nesses:

Jos. P. LIVERMORE, mamen J. NoYns. 

